TWM513460U - Lens structure with high concentrated illumination - Google Patents

Abstract

A lens structure includes a combining portion and a light guiding portion. The light guiding portion is disposed on the combining portion. The light guiding portion includes a first truncated-cone light guiding structure and a second truncated-cone light guiding structure. The first truncated-cone light guiding structure has a first bottom surface combined with the combining portion and a first top surface. An area of the first top surface is smaller than an area of the first bottom surface. The second truncated-cone light guiding structure has a second bottom surface combined with the first top surface and a second top surface. An area of the second bottom surface is smaller than an area of the first top surface, and an area of the second top surface is smaller than an area of the second bottom surface.

Description

High concentration lens structure

The present invention relates to a lens structure, and more particularly to a lens structure which has high concentrating property and is thin and suitable for a Light Emitting Diode (LED).

Recently, light-emitting diodes have been widely used in people's daily lighting systems, such as home lighting, street lighting, or traffic sign lighting. A conventional LED module includes a light emitting diode chip and a lens. The light emitting diode chip emits light, and the lens converges light emitted by the LED chip. However, in order to converge the light emitted by the LED chip to a certain angle, a lens having a long and high-profile structure is required, thereby limiting the height of the LED module, and the LED module is thin. The direction of development.

Therefore, the present invention provides a lens structure having high condensing property and thinning to solve the above problems.

In order to achieve the above object, the present invention discloses a high concentrating lens structure, which is disposed on a light emitting module and a substrate. The lens structure includes a bonding portion and a light guiding portion. The bonding portion is coupled to the substrate and covers the light emitting module. The light guiding portion is disposed on the joint portion. The light guiding portion includes a first truncated conical light guiding structure and a second truncated conical light guiding structure, the first truncated conical light guiding structure has a first bottom surface and a first top surface, the first bottom surface Combined with the joint, the first top The area of the face is smaller than the area of the first bottom face. The second truncated conical light guiding structure is disposed coaxially with the first truncated conical light guiding structure, the second truncated conical light guiding structure has a second bottom surface and a second top surface, the second bottom surface is coupled to the The first top surface has an area smaller than an area of the first top surface, and an area of the second top surface is smaller than an area of the second bottom surface.

According to one embodiment of the present invention, the present invention further discloses that the edge of the first bottom surface is An edge of the second bottom surface extends a radial distance of a first bottom surface along a radial direction of the second bottom surface, and an edge of the first top surface extends from an edge of the second bottom surface along a radial direction of the second bottom surface a first top surface radial distance, and the first bottom surface radial distance is greater than the first top surface radial distance.

According to one embodiment of the present invention, the present disclosure further discloses the first bottom surface radial distance It is substantially equal to 0.2 mm and the first top surface radial distance is substantially equal to 0.11 mm.

According to one embodiment of the present invention, the present disclosure further discloses that the light guiding portion further includes a third truncated conical light guiding structure is disposed coaxially with the second truncated conical light guiding structure, the third truncated conical light guiding structure has a third bottom surface and a third top surface, wherein the third bottom surface is coupled to The second top surface has an area smaller than an area of the second top surface, and an area of the third top surface is smaller than an area of the third bottom surface.

According to one embodiment of the present invention, the present invention further discloses that the edge of the second bottom surface is An edge of the third bottom surface extends a radial distance of a second bottom surface along a radial direction of the third bottom surface, and an edge of the second top surface extends from an edge of the third bottom surface along a radial direction of the third bottom surface a second top surface has a radial distance, and the second bottom surface has a radial distance greater than the second top surface radial distance.

According to one embodiment of the present invention, the present disclosure further discloses the second bottom radial distance It is substantially equal to 0.2 mm and the second top surface radial distance is substantially equal to 0.11 mm.

According to one embodiment of the present invention, the present invention further discloses that the edge of the first bottom surface, the edge of the second bottom surface, and the edge of the third bottom surface are co-located on a virtual spherical surface.

According to one embodiment of the present invention, the present invention further discloses that the radius of the virtual spherical surface is substantially equal to 1.9 mm.

According to one embodiment of the present invention, the present invention further discloses that the geometric center of the illumination module passes through the center of the virtual spherical surface.

According to one embodiment of the present invention, the present invention further discloses that the edge of the first bottom surface, the edge of the second bottom surface, and the edge of the third bottom surface are disposed coaxially with each other.

In summary, the light guiding portion of the lens structure of the present invention is composed of a plurality of truncated conical light guiding structures, and the light guiding surface of the light guiding portion of the lens structure is composed of the bottom surface and the top surface of each truncated conical light guiding structure. Therefore, the light-emitting surface of the light guiding portion of the lens structure is not a smooth continuous curved surface, which can effectively reduce the overall height of the lens structure, and not only facilitates the development of the lens structure in a thinning direction and can emit light. The light emitted by the module converges to a certain angle. The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention.

1000‧‧‧ lens structure

1‧‧‧Lighting module

10‧‧‧Light axis

11‧‧‧Glossy

2‧‧‧Substrate

3‧‧‧ concave cup

4‧‧‧Combination Department

5‧‧‧Light Guide

50‧‧‧First truncated conical light guiding structure

501‧‧‧ first bottom surface

502‧‧‧ first top surface

503‧‧‧ first side

51‧‧‧Second truncated conical light guiding structure

511‧‧‧second bottom surface

512‧‧‧second top surface

513‧‧‧ second side

52‧‧‧The third truncated conical light guiding structure

521‧‧‧ third bottom

522‧‧‧ third top surface

53‧‧‧Four truncated conical light guiding structure

54‧‧‧Fixed truncated conical light guiding structure

55‧‧‧6th truncated conical light guiding structure

56‧‧‧The seventh truncated conical light guiding structure

57‧‧‧The eighth truncated conical light guiding structure

6‧‧‧Virtual spherical surface

60‧‧‧radius

61‧‧‧ ball heart

B1, B2, B3, T1, T2‧‧

D‧‧‧Distance

X1‧‧‧ radial direction

C1‧‧‧first bottom radial distance

D1‧‧‧first top radial distance

C2‧‧‧Second bottom radial distance

D2‧‧‧Second top radial distance

Fig. 1 is a schematic view showing the appearance of a lens structure of the present embodiment.

Fig. 2 is a schematic exploded view of the lens structure of the present embodiment.

Fig. 3 is a schematic cross-sectional view showing the lens structure of the present embodiment.

Directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc. Just refer to the direction of the additional schema. Therefore, the directional terminology used is used to illustrate that it is not intended to limit the creation. Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a schematic diagram showing the appearance of a lens structure 1000 according to a first embodiment of the present invention. FIG. 2 is an exploded view of the lens structure 1000 of the present embodiment, and FIG. 3 is a lens of the present embodiment. A schematic cross-sectional view of structure 1000. As shown in FIG. 1 to FIG. 3 , the lens structure 1000 is disposed on a light emitting module 1 and a substrate 2 . In this embodiment, the light emitting module 1 can be a light emitting diode (LED) chip, the substrate 2 can be a light emitting diode substrate, and a concave cup 3 can be formed on the light emitting diode substrate. The light emitting diode chip (ie, the light emitting module 1) is disposed in the concave cup 3.

Further, the lens structure 1000 includes a joint portion 4 and a light guide portion 5, combined The portion 4 is coupled to the substrate 2 and covers the opening of the concave cup 3 and the light-emitting module 1 so that the light-emitting module 1 is sealed in the concave cup 3, whereby the light emitted by the light-emitting module 1 passes through the joint portion 4 and the guide The light portion 5 is transmitted out of the lens structure 1000. In practice, the joint portion 4 extends along the outer edge of the opening of the concave cup 3 by a distance D to encapsulate a cable (not shown) of the light-emitting module 1. The light guiding portion 5 is disposed on the joint portion 4. In this embodiment, the light guiding portion 5 can be integrally formed with the joint portion 4.

In addition, the light guiding portion 5 includes a first truncated cone light guiding structure 50 and a second truncated circle. The cone light guiding structure 51 and a third truncated cone light guiding structure 52. The first truncated cone light guiding structure 50 has a first bottom surface 501 and a first top surface 502. The first bottom surface 501 is coupled to the joint portion 4, and the area of the first top surface 502 is smaller than the area of the first bottom surface 501 (eg, Figure 3). The second truncated conical light guiding structure 51 is disposed coaxially with the first truncated conical light guiding structure 50, that is, the second truncated conical light guiding structure 51 and the first truncated conical light guiding structure 50 are respectively coaxial with the light emitting module 1 An optical axis 10, wherein the optical axis 10 is perpendicular to one of the light-emitting surfaces 11 of the light-emitting module 1 and passes through the geometric center of the light-emitting surface 11.

As shown in FIG. 3, the second truncated cone light guiding structure 51 has a second bottom surface 511 and a second top surface 512 is coupled to the first top surface 502, that is, the second bottom surface 511 is coplanar with the first top surface 502, and the second bottom surface 511 has an area smaller than the area of the first top surface 502, and The area of the second top surface 512 is smaller than the area of the second bottom surface 511. Further, the third truncated conical light guiding structure 52 is disposed coaxially with the second truncated conical light guiding structure 51, that is, the third truncated conical light guiding structure 52, the second truncated conical light guiding structure 51 and the first truncated top The conical light guiding structure 50 is respectively coaxial with the optical axis 10 of the light emitting module 1. The third truncated conical light guiding structure 52 has a third bottom surface 521 and a third top surface 522, and the third bottom surface 521 is coupled to the second top surface. 512, that is, the third bottom surface 521 and the second top surface 512 are coplanar, the area of the third bottom surface 521 is smaller than the area of the second top surface 512, and the area of the third top surface 522 is smaller than the area of the third bottom surface 521.

Further, an edge (ie, a point) of the first bottom surface 501 of the first truncated conical light guiding structure 50 B1) The edge of the second bottom surface 511 of the second truncated cone light guiding structure 51 (ie, the point B2) extends along the radial direction X1 of the second bottom surface 511 by a first bottom surface radial distance C1, the first truncated cone The edge of the first top surface 502 of the light guiding structure 50 (ie, the point T1) is extended by the edge of the second bottom surface 511 of the second truncated conical light guiding structure 51 (ie, the point B2) along the radial direction X1 of the second bottom surface 511. A first top surface radial distance D1 is obtained, wherein the first bottom surface radial distance C1 is greater than the first top surface radial distance D1. The edge of the second bottom surface 511 of the second truncated conical light guiding structure 51 (ie, the point B2) is the diameter of the third bottom surface 521 of the third truncated conical light guiding structure 52 (ie, the point B3) along the third bottom surface 521. A second bottom surface radial distance C2 extends from the direction X1, and the second top surface 512 of the second truncated conical light guiding structure 51 (ie, the point T2) is defined by the third bottom surface 521 of the third truncated conical light guiding structure 52. The edge (ie, point B3) extends along a radial direction X1 of the third bottom surface 521 by a second top surface radial distance D2, wherein the second bottom surface radial distance C2 is greater than the second top surface radial distance D2.

In this embodiment, the first bottom surface radial distance C1 may be substantially equal to the second bottom surface radial direction. The distance C2, and the first top surface radial distance D1 may be substantially equal to the second top surface radial distance D2. In practice, the first bottom radial distance C1 and the second bottom radial distance C2 may each be substantially equal to 0.2 mm. And the first top surface radial distance D1 and the second top surface radial distance D2 match may be substantially equal to 0.11 mm, but the creation is not limited thereto.

It is worth mentioning that the edge of the first bottom surface 501 of the first truncated conical light guiding structure 50 (ie, point B1), the edge of the second bottom surface 511 of the second truncated conical light guiding structure 51 (ie, point B2) and the edge of the third bottom surface 521 of the third truncated conical light guiding structure 52 (ie, point B3) are common Located on a virtual spherical surface 6, that is, the edge of the first bottom surface 501 of the first truncated conical light guiding structure 50 (ie, the point B1), and the edge of the second bottom surface 511 of the second truncated conical light guiding structure 51 (ie, the point B2) And the edges of the third bottom surface 521 of the third truncated conical light guiding structure 52 (ie, point B3) are disposed coaxially with each other, wherein the radius 60 of the virtual spherical surface 6 may be substantially equal to 1.9 mm. In addition, the geometric center of the light-emitting module 1 (ie, the light-emitting axis 10) passes through the center 61 of the virtual spherical surface 6.

In addition, the first truncated cone light guiding structure 50 further includes a first side surface 503, The second truncated-conical light guiding structure 51 further includes a second side surface 513. The first side surface 503 is connected to the first bottom surface 501 and the first top surface 502, and the second side surface 513 is connected to the second bottom surface 511 and the second top surface 512. The first bottom surface 503 has a radial distance D1 from the first top surface. The first side surface 503 is a conical slope and the slope is a radial distance from the first bottom surface and a radial distance from the first top surface. D1 determines, and according to the structural design of the second bottom radial distance C2 and the second top radial distance D2, the second side 513 is a conical slope and the slope is the second bottom radial distance C2 and the second The top radial distance D2 is determined.

In this way, the first side surface 503 and the second side surface 513 can reflect the light emitted by the light-emitting module 1 to converge the light emitted by the light-emitting module 1 to a specific angle (for example, 60 degrees). As shown in FIG. 3, the lens structure 1000 further includes a fourth truncated conical light guiding structure 53, a fifth truncated conical light guiding structure 54, a sixth truncated conical light guiding structure 55, and a seventh. a truncated conical light guiding structure 56 and an eighth truncated conical light guiding structure 57, and a third truncated conical light guiding structure 52, a fourth truncated conical light guiding structure 53, a fifth truncated conical light guiding structure 54, a sixth truncated conical light guiding structure 55, a seventh truncated conical light guiding structure 56, and an eighth truncated conical light guiding structure 57 The structural design and the principle of operation are the same as those of the first truncated conical light guiding structure 50 and the second truncated conical light guiding structure 51. For brevity, no further details are provided herein.

Compared with the prior art, the light guiding portion of the lens structure of the present invention is composed of a plurality of truncated conical light guiding structures, and the light guiding surface of the light guiding portion of the lens structure is composed of the bottom surface and the top of each truncated conical light guiding structure. The surface and the side surface are formed. Therefore, the light-emitting surface of the light guiding portion of the lens structure is not a smooth continuous curved surface, which can effectively reduce the overall height of the lens structure, and not only facilitates the development of the lens structure in the direction of thinning and can The light emitted by the light-emitting module converges to a certain angle. The above descriptions are only preferred embodiments of the present invention, and all changes and modifications made by the scope of the patent application of the present invention should be covered by the present invention.

1000‧‧‧ lens structure

1‧‧‧Lighting module

10‧‧‧Light axis

11‧‧‧Glossy

2‧‧‧Substrate

3‧‧‧ concave cup

4‧‧‧Combination Department

5‧‧‧Light Guide

50‧‧‧First truncated conical light guiding structure

501‧‧‧ first bottom surface

502‧‧‧ first top surface

503‧‧‧ first side

51‧‧‧Second truncated conical light guiding structure

511‧‧‧second bottom surface

512‧‧‧second top surface

513‧‧‧ second side

52‧‧‧The third truncated conical light guiding structure

521‧‧‧ third bottom

522‧‧‧ third top surface

53‧‧‧Four truncated conical light guiding structure

54‧‧‧Fixed truncated conical light guiding structure

55‧‧‧6th truncated conical light guiding structure

56‧‧‧The seventh truncated conical light guiding structure

57‧‧‧The eighth truncated conical light guiding structure

6‧‧‧Virtual spherical surface

60‧‧‧radius

61‧‧‧ ball heart

B1, B2, B3, T1, T2‧‧

D‧‧‧Distance

X1‧‧‧ radial direction

C1‧‧‧first bottom radial distance

D1‧‧‧first top radial distance

C2‧‧‧Second bottom radial distance

D2‧‧‧Second top radial distance

Claims (10)

A high concentrating lens structure is disposed on a light emitting module and a substrate, the lens structure includes: a bonding portion coupled to the substrate and covering the light emitting module; and a light guiding portion disposed on the combination The light guiding portion includes: a first truncated conical light guiding structure having a first bottom surface and a first top surface, wherein the first bottom surface is coupled to the joint portion, and the area of the first top surface An area smaller than the first bottom surface; and a second truncated conical light guiding structure disposed coaxially with the first truncated conical light guiding structure, the second truncated conical light guiding structure having a second bottom surface and a first The second top surface is coupled to the first top surface. The area of the second bottom surface is smaller than the area of the first top surface, and the area of the second top surface is smaller than the area of the second bottom surface. The lens structure of claim 1, wherein an edge of the first bottom surface is extended by a radial distance of the second bottom surface along a radial direction of the second bottom surface by a first bottom surface, the edge of the first top surface A first top surface radial distance extends from an edge of the second bottom surface along a radial direction of the second bottom surface, and the first bottom surface has a radial distance greater than the first top surface radial distance. The lens structure of claim 2, wherein the first bottom surface has a radial distance substantially equal to 0.2 mm and the first top surface radial distance is substantially equal to 0.11 mm. The lens structure of claim 1, wherein the light guiding portion further comprises: a third truncated conical light guiding structure disposed coaxially with the second truncated conical light guiding structure, the third truncated conical guide The light structure has a third bottom surface and a third top surface, the third bottom surface is coupled to the second top surface, the area of the third bottom surface is smaller than the area of the second top surface, and the area of the third top surface is smaller than The area of the third bottom surface. The lens structure of claim 4, wherein an edge of the second bottom surface is edged by the third bottom surface A second bottom surface radial distance extends along a radial direction of the third bottom surface, and an edge of the second top surface extends from a third bottom surface along a radial direction of the third bottom surface to a second top surface diameter The distance is the distance, and the second bottom surface has a radial distance greater than the second top surface radial distance. The lens structure of claim 5, wherein the second bottom surface has a radial distance substantially equal to 0.2 mm and the second top surface radial distance is substantially equal to 0.11 mm. The lens structure of claim 6, wherein the edge of the first bottom surface, the edge of the second bottom surface, and the edge of the third bottom surface are co-located on a virtual spherical surface. The lens structure of claim 7, wherein the radius of the virtual spherical surface is substantially equal to 1.9 mm. The lens structure of claim 7, wherein a geometric center of the light emitting module passes through a center of the virtual spherical surface. The lens structure of claim 4, wherein an edge of the first bottom surface, an edge of the second bottom surface, and an edge of the third bottom surface are coaxially disposed with each other.